feat: optimize DB performance

[hwbrzzl]

📑 Description

✅ Checks

• Added test cases for my code

Pull Request Overview

This PR adds benchmark tests to evaluate database operations and improves logger variable consistency while updating model struct annotations. Key changes include:

• Addition of Benchmark_Orm benchmark in tests/query_test.go.
• Addition of Benchmark_DB benchmark in tests/db_test.go.
• Consolidation of trace string variables in database/logger/logger.go.
• Update of the Author struct in tests/models.go with a db tag.

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tests/query_test.go	Introduced Benchmark_Orm for benchmarking DB operations.
tests/db_test.go	Introduced Benchmark_DB for benchmarking DB operations.
database/logger/logger.go	Moved trace variable declarations to package scope.
tests/models.go	Added db:"name" annotation in Author struct.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.31%. Comparing base (0232bce) to head (8082210).
Report is 1 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #965   +/-   ##
=======================================
  Coverage   69.31%   69.31%           
=======================================
  Files         160      160           
  Lines       10713    10713           
=======================================
  Hits         7426     7426           
  Misses       2951     2951           
  Partials      336      336           

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